Carpet sweeper



Dec. 1, 1931.

w. TOWNLEY CARPET SWEEPER Filed Feb. 14, 1929 2 Sheets-Sheet 2 INVENTORYWILL/AM deo WNLE eel,

Patented Dec. 1, 193.1

UNITED? STATES WILLIAM TOWNLEY, DECEASED, LATE or Aconme'zron, ENGLAND,jay NANGY TO'WNLEY EXEGUTRIX, OF ACCEINGTON, ENGLAND, ASSIGNOR T'OENTWISLE & KENYON LIMITED, OF ACGRINGTON, ENGLAND GARPET SWEEPERApplication filed February 14, 1929, Serial No. 339,918, and in GreatBritain August 23, 1928.

This invention relates to carpet sweepers and more particularly toimprovements in the mechanism for operating the dust pans, of the typein whicha spring wire attached to each dust pan is connected to one endof a pivoted lever to the other end of which is pivotally connected onarm passing through a slot in a finger plate on the casing of thesweeper so that by depressing this arm the dust pans are caused to openwhilst on releasing the arm the spring wire causes them to close.

The object of the present invention is to provide means whcreby the dustpans will be held or locked in theiropen position when the arm passingthrough'the sweeper casing is depressed. f I

According to the invention a. recess is formed near the top of the armto provide a shoulder so that when the arm has been depressed to openthe dust pans it can be moved laterally'and the shoulder will engage thefinger plate and hold the dust pans in their open position until the armis released by moving it back from the end of the slot.

The invention will be described with reference to the accompanyingdrawings Fig. 1 is a transverse section of a carpet sweeper showing theinvention applied thereto.

Fig. 2 is a plan of part of a carpet sweeper showing the inventionapplied thereto.

Fig. 3 is a perspective view of a corner of a carpet sweeper showing oneform of looking device in the normal position.

Fig. 4 is a similar perspective view showing the locking device in thedepressed position for holding the dust pans in the open position.

Fig. 5 is a perspective view of a corner of a carpet sweeper showinganother form of locking device in the normal position.

Fig. 6 is a similar perspective view showing the locking device in thedepressed position for holding the dust pans in the open position.

Fig. 7 is a plan view of the finger plate Fig. 8 is a section throughthe finger plate and locking arm.

Each dust pan A is connected by a spring wire a to oneend of a pivotedlever B, to the other end of which an arm C is pivotally connected. Thearm C passes through a slot (Z in a finger plate D on the sweeper sothat by the depression of the arm C the dust pans A are caused to openwhilst on releasing the arm C the spring wire a causes them to close.

The above described arrangement for operating the dust pans is of knownconstruction and whileit operates the dust pan-s successfully it has nomeans for holding or lookthe dust pans in the open position.

In the form of the invention shown in Figs. 3 and i a recess is formednear the top of the arm C to provide a shoulder c at its top end so thatwhen the arm has been depressed to open the dust pans A it can be movedlaterally to. al ow the shoulder c to engage under the finger plate D atthe end of the slot (2 to hold the dust pans A in their open posi tionuntil the arm is released by moving it backfrom the end of the slot (Z.

In the form of the invention shown in Figs. 5 to 8 means are alsoprovided to prevent the arm C which is L shaped in cross section beingmoved laterally until it has been depressed. In this construction theslot in the finger plate D is made L shaped with two branches 6Z althrough one of whichal the arm 0 projects this slot being made longerthan the width of the arm C so that the latter can move laterallytherein. A flange 0 is formed along one edge of the arm C and passesthrough the second slot d at right angles to the slot (F. A recess isformed in the flange o to provide a shoulder a at its top end so thatwhen and not until the arm C has been depressed to its full extent theflange 0 will be clear 01"? the second casing of the 7 In mechanism ofthe type referred to for holding the dust pans of a carpet sweeper openthe combination with a finger plate provided with an L-shaped slot, anoperating arm IL-sh'aped in cross section extending through said slotand operatively connected with said pans, said arm being provided with ashoulder at its top and to engage under said plate when said arm isdepressed. 5 In testimony whereof I have hereunto set my hand this 31stdag of January, 1929.

N NGY TOWNLEY, Emecutm'w of William Toumley, Deceased;

